Google Analytics events

[fernandojsg]

I already requested a google analytics track ID to include on the page. Apart from the standard data as the number of visitors and so, we would like to keep track of the usage of each demo. The obvious ones would be emitting an event every time we switch the room, or if we enter immersive mode or not. These are discrete values, but it could be interesting to measure timings like how long the user was painting in the graffiti, or on the panorama. We could measure the time by just measuring the time the user is inside a specific bounding box I don't have much experience with timing on GA but I'll give it a try.

Any other suggestions to measure? @joshmarinacci @feiss

[fernandojsg]

For reference this is what we could use for user timings: https://developers.google.com/analytics/devguides/collection/analyticsjs/user-timings